| Acronym | Meaning |
| IRS | Interferon-responsive Sequence |
| EXPOLIS | Air Pollution Exposure Distribution Within Adult Urban Populations In Europe |
| HERAC | Health And Environmental Research Advisory Committee |
| HIT | Heterojunction With Intrinsic Thin Layer (photovoltaic Cell; Solar Cell) |
| ARGOS | Advanced Research And Global Observation Satellite |
| CARS | Coherent Anti-Stokes Raman Spectroscopy |
| RIP | Rapid Isothermal Processing |
| AIP | Arc Ion Plating |
| SAF | Symmetry Adapted Function (in CI Calcns.) |
| DRLFP | Diffuse Reflectance Laser Flash Photolysis |